# Floating point error

Pavel Curtis (pavel@parc.xerox.com)
Wed, 13 Mar 1996 12:10:43 PST

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    Brian Buchanan writes:
    > It appears that there's a problem with floating point in 1.8.0p1...
    > On a MOO running 1.8.0beta3 and on another running beta2:
    > ;1.6
    > => 1.6
    > On a MOO running 1.8.0p1 and on ANOTHER running p1:
    > ;1.6
    > => 1.6000000000000001

    This is, indeed, an issue in the release and not just in any particular
    operating system.  The change (in 1.8.0) was to add a couple more digits to the
    output of floating-point numbers (DBL_DIG + 2 instead of just DBL_DIG, for
    those who know what that means).  I was trying to be sure of getting all of the
    information in the number, especially for DB saving, but I may have gone too
    far.  I'll look into it for 1.8.0p2.

    	Pavel